Hadrosauridae
E673289
Hadrosauridae is a family of herbivorous "duck-billed" dinosaurs known for their broad, flattened snouts and often elaborate cranial crests, which thrived during the Late Cretaceous period.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Hadrosauridae canonical | 5 |
| Saurolophinae | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7575566 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hadrosauridae Context triple: [Dinosauria, hasMember, Hadrosauridae]
-
A.
Nodosauridae
Nodosauridae is a family of heavily armored, herbivorous ankylosaurian dinosaurs characterized by bony plates and spikes but lacking tail clubs, known from the Late Jurassic to Late Cretaceous.
-
B.
Saltasauridae
Saltasauridae is a family of small to medium-sized, heavily armored titanosaurs known from the Late Cretaceous and characterized by bony plates (osteoderms) embedded in their skin.
-
C.
Edmontosaurus annectens
Edmontosaurus annectens is a large, late Cretaceous duck-billed hadrosaurid dinosaur known for its broad, flat snout and abundant fossil remains in western North America.
-
D.
Eschrichtiidae
Eschrichtiidae is a family of baleen whales best known for including the gray whale, a large migratory species found in coastal and Arctic waters.
-
E.
Pachycephalidae
Pachycephalidae is a family of passerine birds, commonly known as whistlers and their allies, found mainly in Australasia and noted for their strong, melodious vocalizations.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Hadrosauridae Target entity description: Hadrosauridae is a family of herbivorous "duck-billed" dinosaurs known for their broad, flattened snouts and often elaborate cranial crests, which thrived during the Late Cretaceous period.
-
A.
Nodosauridae
Nodosauridae is a family of heavily armored, herbivorous ankylosaurian dinosaurs characterized by bony plates and spikes but lacking tail clubs, known from the Late Jurassic to Late Cretaceous.
-
B.
Saltasauridae
Saltasauridae is a family of small to medium-sized, heavily armored titanosaurs known from the Late Cretaceous and characterized by bony plates (osteoderms) embedded in their skin.
-
C.
Edmontosaurus annectens
Edmontosaurus annectens is a large, late Cretaceous duck-billed hadrosaurid dinosaur known for its broad, flat snout and abundant fossil remains in western North America.
-
D.
Eschrichtiidae
Eschrichtiidae is a family of baleen whales best known for including the gray whale, a large migratory species found in coastal and Arctic waters.
-
E.
Pachycephalidae
Pachycephalidae is a family of passerine birds, commonly known as whistlers and their allies, found mainly in Australasia and noted for their strong, melodious vocalizations.
- F. None of above. chosen
Statements (58)
| Predicate | Object |
|---|---|
| instanceOf |
dinosaur family
ⓘ
taxonomic family ⓘ |
| characteristicFeature |
battery of tightly packed teeth
ⓘ
broad flattened snout ⓘ complex dental batteries for grinding plant material ⓘ duck-bill-like beak ⓘ long tails ⓘ often elaborate cranial crests ⓘ relatively shorter forelimbs ⓘ robust hind limbs ⓘ |
| clade |
Cerapoda
ⓘ
Dinosauria ⓘ Neornithischia ⓘ
linked to:
Ornithischia
|
| commonName |
duck-billed dinosaurs
ⓘ
hadrosaurids ⓘ |
| containsGenus |
Corythosaurus
ⓘ
Edmontosaurus ⓘ
linked to:
Edmontosaurus annectens
Hadrosaurus ⓘ Lambeosaurus ⓘ
linked to:
Corythosaurus
Maiasaura ⓘ Parasaurolophus ⓘ |
| crestFunctionHypothesis |
acoustic resonance for sound production
ⓘ
sexual selection ⓘ species recognition ⓘ visual display ⓘ |
| diet | herbivorous ⓘ |
| extinctionEvent |
Cretaceous–Paleogene extinction event
ⓘ
linked to:
Cretaceous–Paleogene boundary
|
| extinctionStatus | extinct ⓘ |
| feedingAdaptation |
ability to process tough vegetation
ⓘ
highly efficient chewing mechanism ⓘ |
| firstAppearance | Cenomanian ⓘ |
| fossilEvidence |
abundant in Late Cretaceous formations of western North America
ⓘ
numerous bonebeds indicating mass mortality events ⓘ |
| geographicDistribution |
Antarctica
ⓘ
Asia ⓘ Europe ⓘ North America ⓘ South America ⓘ |
| geologicalPeriod | Cretaceous ⓘ |
| kingdom | Animalia ⓘ |
| lastAppearance | Maastrichtian ⓘ |
| locomotion |
bipedal
ⓘ
facultatively quadrupedal ⓘ |
| notableSubgroup |
Lambeosaurinae
ⓘ
Saurolophinae ⓘ |
| order | Ornithischia ⓘ |
| phylum | Chordata ⓘ |
| reproduction | oviparous ⓘ |
| sensoryAdaptation |
well-developed eyesight
ⓘ
well-developed hearing ⓘ |
| socialBehavior |
evidence for herding behavior
ⓘ
likely gregarious ⓘ |
| suborder | Ornithopoda ⓘ |
| superfamily |
Hadrosauroidea
ⓘ
linked to:
Hadrosauriformes
|
| temporalRange | Late Cretaceous ⓘ |
| typicalHabitat |
coastal plains
ⓘ
floodplains ⓘ terrestrial environments ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Hadrosauridae Description of subject: Hadrosauridae is a family of herbivorous "duck-billed" dinosaurs known for their broad, flattened snouts and often elaborate cranial crests, which thrived during the Late Cretaceous period.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Hadrosauridae